summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/stm
diff options
context:
space:
mode:
authorYannick Fertré <yannick.fertre@st.com>2019-05-10 17:03:20 +0200
committerBenjamin Gaignard <benjamin.gaignard@linaro.org>2019-05-24 10:30:46 +0200
commitfd6905fca4f013463026ca1a07fee463fbf0d974 (patch)
tree064e411d738b438ea9142696661baf0c51746e0e /drivers/gpu/drm/stm
parent909fa3321d348ef69366aad9e84e1dd9ee0bd060 (diff)
drm/stm: ltdc: remove clk_round_rate comment
Clk_round_rate returns rounded clock without changing the hardware in any way. This function couldn't replace set_rate/get_rate calls. Todo comment has been removed & a new log inserted. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1557500600-19771-1-git-send-email-yannick.fertre@st.com
Diffstat (limited to 'drivers/gpu/drm/stm')
-rw-r--r--drivers/gpu/drm/stm/ltdc.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 14eb8c40953b..ae2aaf2a62ee 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -507,20 +507,16 @@ static bool ltdc_crtc_mode_fixup(struct drm_crtc *crtc,
struct ltdc_device *ldev = crtc_to_ltdc(crtc);
int rate = mode->clock * 1000;
- /*
- * TODO clk_round_rate() does not work yet. When ready, it can
- * be used instead of clk_set_rate() then clk_get_rate().
- */
-
- clk_disable(ldev->pixel_clk);
if (clk_set_rate(ldev->pixel_clk, rate) < 0) {
DRM_ERROR("Cannot set rate (%dHz) for pixel clk\n", rate);
return false;
}
- clk_enable(ldev->pixel_clk);
adjusted_mode->clock = clk_get_rate(ldev->pixel_clk) / 1000;
+ DRM_DEBUG_DRIVER("requested clock %dkHz, adjusted clock %dkHz\n",
+ mode->clock, adjusted_mode->clock);
+
return true;
}